Advertisement


 1
H
.
 1
D
.

Chemical Elements

A Virtual Museum

© Jumk.de Webprojects | Imprint & Privacy
Particle Zoo | Chemical Calculators | Atomic Collider Simulation
 2
He
.
 3
Li
...
 4
Be
...
 5
B
...
 6
C
...
 7
N
.
 8
O
.
 9
F
.
 10
Ne
.
 11
Na
...
 12
Mg
...
 13
Al
...
 14
Si
...
 15
P
...
 16
S
...
 17
Cl
.
 18
Ar
.
 19
K
...
 20
Ca
...
 21
Sc
...
 22
Ti
...
 23
V
...
 24
Cr
...
 25
Mn
...
 26
Fe
...
 27
Co
...
 28
Ni
...
 29
Cu
...
 30
Zn
...
 31
Ga
...
 32
Ge
...
 33
As
...
 34
Se
...
 35
Br
..
 36
Kr
.
 37
Rb
...
 38
Sr
...
 39
Y
...
 40
Zr
...
 41
Nb
...
 42
Mo
...
 43
Tc
...
 44
Ru
...
 45
Rh
...
 46
Pd
...
 47
Ag
...
 48
Cd
...
 49
In
...
 50
Sn
...
 51
Sb
...
 52
Te
...
 53
I
...
 54
Xe
.
 55
Cs
...
 56
Ba
...
 57-71
La-Lu

 72
Hf
...
 73
Ta
...
 74
W
...
 75
Re
...
 76
Os
...
 77
Ir
...
 78
Pt
...
 79
Au
...
 80
Hg
..
 81
Tl
...
 82
Pb
...
 83
Bi
...
 84
Po
...
 85
At
...
 86
Rn
.
 87
Fr
...
 88
Ra
...
 89-103
Ac-Lr

 104
Rf

 105
Db

 106
Sg

 107
Bh

 108
Hs

 109
Mt

 110
Ds

 111
Rg

 112
Cn

 113
Nh

 114
Fl

 115
Mc

 116
Lv

 117
Ts

 118
Og

Home | Random
All, All2, Mosaic
Concentration game
Knowledge
Element properties
Records, Archives
 57
La
...
 58
Ce
...
 59
Pr
...
 60
Nd
...
 61
Pm
...
 62
Sm
...
 63
Eu
...
 64
Gd
...
 65
Tb
...
 66
Dy
...
 67
Ho
...
 68
Er
...
 69
Tm
...
 70
Yb
...
 71
Lu
...
Islands of Stability
 89
Ac
...
 90
Th
...
 91
Pa
...
 92
U
...
 93
Np
...
 94
Pu
...
 95
Am
...
 96
Cm
...
 97
Bk
...
 98
Cf
...
 99
Es
...
 100
Fm
...
 101
Md
...
 102
No
...
 103
Lr

Advertisement

   67    

67 Ho Holmium

Lanthanoid, mass: 164.93 u, 1 stable isotope (165), abundance rank (earth/space): 57/76

Click image to magnify. Ultrapure holmium, 17 grams. Original size in cm: 1.5 x 2.5
Holmium Holmium piece
Holmium is, for a lanthanoid, quite resistant against oxidation and only slightly toxic. It is the element with the highest magnetic moment, therefore it has its main application within high-strength magnets. The color of its oxide is a very pure yellow, which is used to stain special glass.

Holmium(III) in acetic acid Holmium(III) crystals
Left: A small piece of holmium dissolved in 25% acetic acid. The reaction product contains the yellow holmium(III) ion, probably as holmium acetate.
Right: After the acid evaporated, small crystals of the holmium compound remained. Detail size about 4 cm. See also terbium.

Holmium dendrite Holmium oxidized
Left: Holmium dendrite, 2.5 cm long.
Right: After six month in air at room temperature, the holmium surface has oxidized only slightly.


Advertisement


The images are licensed under a Creative Commons Attribution 3.0 Unported License, unless otherwise noted. Attribution by linking (outside of the internet credit with url) to the according element page.



 


Advertisement